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450 protocols using d luciferin

1

Quantifying In Vitro and In Vivo Bioluminescence

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In vitro BLI and BLI of mice under isoflurane gas anesthesia were carried out on an IVIS Spectrum System (CaliperLS; Perkin-Elmer, Hopkinton, MA, USA). Living Image software (version 4.4.17504) was used for quantifying luminescence.
To measure the in vitro BLI signal intensity, both control and transduced cells were equally seeded (60 000 cells per well in a 24-well plate) and measured the next day after 5 min incubation at 37 °C with D-luciferin (Promega BeNeLux, Leiden, The Netherlands; 150 μg/l dissolved in PBS).
For in vivo BLI measurements, D-luciferin (126 mg/kg dissolved in PBS (15 mg/ml)) was injected intraperitoneally and acquisition of consecutive frames was started until maximum signal intensity was reached. Image acquisition numbers and times varied between 10 and 15 frames of 30-60 s each, depending on the optimal acquisition settings in function of the signal intensity intrinsic to the grade of lung metastasis. We measured the photon flux per second (p/s) through a region of interest (2.9 cm × 1.8 cm) covering the lungs.
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2

Bioluminescent Tumor Imaging in Mice

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Two ID8 luciferase expressing clonal cell sublines, ID8-L4 and ID8-L11, were subjected to bioluminescence imaging. Briefly, cells were seeded in 100 μl medium into a 96-well plate and just prior to imaging using an IVIS Spectrum In Vivo Imaging System (Perkin Elmer, Rodgau, Germany), an equal volume of in vivo glow solution (D-Luciferin, Promega) was added to each well. Images were obtained with a 12.8 cm field of view, 2x2 binning factor and an exposure time of 1 second. As recommended by the manufacturer, the auto-exposure setting was used to automatically set the exposure time, f/stop and binning to keep the signal within an optimal range for quantification and to avoid overexposure during image acquisition. Auto-exposure sensitivity settings used for the snapshot image were adjusted to obtain a minimal target count of 3000. Luminescence was measured as total flux (photons per second (P/S)).
In vivo live bioluminescence imaging of tumor burden was performed using an IVIS Spectrum In Vivo Imaging System. Animals were anesthetised with 1.5-2.5% isoflurane inhalation and given an intraperitoneal injection of 165 mg/kg body weight D-Luciferin (Promega; 30 mg/ml sterile saline) 3 min immediately prior to imaging. Mice were imaged in batches of 4. Images were obtained with a 12.8 cm field of view, 4x4 binning factor and an exposure time ranging from 0.5-1 second.
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3

NF-κB Activity Modulation Assay

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CL1-5-F4/NF-κB-luc2 cells were plated into 96-well (1.5×104/well) overnight and treated with various concentrations of imipramine (0, 50, 100, 150 and 200 μM), erlotinib (10 μM), hEGF (30 ng/ml), rottlerin (20 nM) and Phorbol myristate acetate (PMA) (75 nM) alone or combined with 100 and 150 μM imipramine for 48 hr. After treatment, 100 μl D-luciferin (Promega, Madison, WI, USA) solution (500 μM D-luciferin) was added into each well and incubated for 5 min in the dark at room temperature before image acquisition. NF-κB activation signal was collected for 3 min by IVIS Lumina LT Series and normalized with cell viability.
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4

Bioluminescence Imaging of Transplanted Cells

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To visualize the transplanted cells, F3 cells were infected with lentivirus to express the luciferase gene using the method described in the section “Lentivirus preparation and infection”. For the acquisition of bioluminescence images, mice were anesthetized with isoflurane inhalation. d-Luciferin (Promega) was diluted to 3 mg/100 µL in saline and 0.6 mg of d-Luciferin was intravenously administered. An IVIS-100 imaging system (Perkin Elmer) was used, and the images were acquired by integrating light for 30 s. The brains were then isolated from mice and imaged using the IVIS-100 imaging system.
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5

Bioluminescence Imaging for Metastatic CDX Cells

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In total, 5 × 105 luciferase-expressing CDX-derived cells were grafted by IC injection into NSG mice (Charles River Laboratories). Metastatic progression was monitored once a week by bioluminescence imaging (BLI) evaluation under anesthesia and after i.p. injection of D-luciferin (15 μg/kg; Promega) using IVIS Spectrum imaging (PerkinElmer). To test in vivo drug efficacy, 2 × 106 cells were injected s.c. into NSG mice. Once tumors reached an average volume of 100 mm3, mice were randomized into groups and treated with vehicle DMSO (1%), olaparib (50 mg/kg, i.p. injection, 3 times per week), BYL719 (20 mg/kg, oral gavage, 3 times per week), AZ82 (10 mg/kg, oral gavage, 3 times per week), or a combination of BYL719 and AZ82. S.c. tumor dimensions were measured by caliper. For BLI evaluation, i.p. with D-luciferin (15 μg/kg; Promega) was performed, and mice were scanned using IVIS Spectrum imaging (PerkinElmer) under anesthesia.
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6

In Vivo Bioluminescence Imaging

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Tumour-bearing tissues were subjected to in vivo bioluminescence imaging using a Living Image® 4.5.4 IVIS Imaging System (Perkin Elmer). For luciferase imaging, D-luciferin (Promega) was injected intraperitoneally before imaging. Quantitative detection of luciferase was performed as follows: regions of interest (ROIs) were drawn to capture detected uorescence, and auto-regions ROIs were used to precisely outline the target region.
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7

Suppressing Cancer Cell Proliferation with Anti-ADAM28 Antibodies

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Example 4

Suppressive Effect of Anti-human ADAM28 Antibodies on Cancer Cell Proliferation In Vivo

ADAM28 high expression breast cancer cell line MDA-MB231ffLuc-cp156 that constitutively expresses luciferase was prepared by a lentivirus vector, and transplanted (2×10e6 cells) to a breast subcutaneous tissue of NOD/SCID mouse (Six-week-old male, Charles River Laboratories International Inc, Washington, Mass.). After transplantation, anti-ADAM28 antibody (2 mg/kg/mice) was topically injected 5 times at 2 day intervals, and the suppressive effect on tumor growth was examined. After intraperitoneal administration of D-luciferin (150 mg/Kg) (Promega Co, Madison, Mich.), the luminescence was detected by in vivo imaging system (IVIS)-100 (Xenogen Co., Alameda, Calif.) (FIG. 3). Both 211-14 and 211-12 antibodies suppressed in vivo proliferation of MDA-MB231ffLuc-cp156.

Example 6

In Example 4, RT-PCR with luciferase specific primers was performed using RNA extracted from each organ of the mouse at 6 weeks after transplantation of cancer cells, the presence or absence of tumor-derived gene expression was confirmed, and the presence or absence of inartificial metastasis was examined (FIG. 5). Both 211-14 and 211-12 antibodies suppressed micrometastasis of cancer cells.

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8

Bioluminescence Emission Spectra Analysis

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Bioluminescence emission spectra of D-luciferin (Promega, Madison, WI, USA), CycLuc1 (AOBIOUS INC., Gloucester, MA, USA) and AkaLumine-HCl were measured using an ATTO AB-1850 spectrophotometer (ATTO Co. Ltd, Tokyo, Japan). A reaction mixture was prepared by mixing 5 μl of a substrate (100 μM), 5 μl of QuantiLum Recombinant Luciferase solution (1 mg ml−1) (Promega) and 5 μl of potassium phosphate buffer (500 mM, pH 8.0). Luminescence reactions were then initiated by injecting 10 μl of ATP-Mg (200 μM) into the reaction mixture. Bioluminescence emission spectra were measured in 1 nm increments from 400 to 780 nm using 3 min of integration time.
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9

Bioluminescence Imaging of A20 Leukemia Cells

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Luciferase expressing A20 leukemia/lymphoma cells (A20-luc) syngeneic with recipients (H2d) were used for these experiments (35 (link)). Each recipient mouse received 3×105 A20-luc tumor cells intravenously within 24 hours after BMT. Tumor load was assessed regularly in BMT recipient mice using an Ami 1000 Advanced Molecular Imager (Spectral Instruments, Tucson, AZ) live animal imaging system. Five minutes before BLI, mice were placed in an oxygenated isoflurane chamber and administered D-luciferin (Promega, Madison, WI) intraperitoneally. BMT recipient animals were imaged for 5 minutes and tumor load was quantitated by means of Living Image software v2.50 (Caliper Life Sciences).
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10

Liver Metastasis from Gastric Cancer

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The mouse-derived gastric cancer cell line MFC was transfected with lentivirus containing Luc-plasmid (Plenti-CMV-EGFR-Linker-Luc-PGK-Puro) purchased from OOBIO Biotechnology Co., Ltd. (Shanghai). Luc-transfected MFC (Luc-MFC) cells were also transfected with Lv-GPAA1 lentivirus to upregulate the expression of GPAA1 or with or Lv-Ctrl lentivirus as the control. MFC-Lv-Ctrl and MFC-Lv-GPAA1 cells were injected into the spleens of C57BL/6 N mice (n = 5/group) at a concentration of 106 cells/mouse to test the potential capability for liver metastasis. Animals were injected with D-luciferin (150 mg; Promega, catalogue no. P1043), subjected to anaesthesia by isoflurane inhalation, and subjected to luciferin emission imaging to measure the diffusion of cancer cells using an IVIS Spectrum (Caliper Life Sciences) every 5 days. The data were quantified by Living Image software, version 4.5.3. Four weeks later, animals were sacrificed, and an immunohistochemical (IHC) analysis of liver tissue was conducted to evaluate the metastatic ability of the cancer cells.
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